Oil reclaimer



Sept; 11, 1928." 1,684,270

A. L. HENNY OIL RECLAIMER Filed Aug. 12, 1925 2 Shets-Sheet 1 TO CENTRIFUGE.

\L INVENTOR WITNESSES I f H MAM k-@13 ATTORNEYS A. L. HENNY OILRECLAIMER Filegl Aug. 12, 1925 2 Sheets-Sheet INVENTOR WITNESSESATTORNEYS Sept. 11, 1928. I 1 1,684,270 I it (i Patented Sept. 11, 1928.

UNITED STATES ARNOLD L. HENNY, OF PORTLAND, OREGON.

OIL nnonairrnn.

Application filed August 12, 1925. set-m1 no. eases.

My invention comprises an apparatus for separating oils intoconstituents of varying density by volatilization of the lighterportions. This apparatus is susceptible of application either to thereclamation of used oil, such as automobile crank-case drainings, or tothe original refining steps. In reclaiming used oil the diluents, suchas gasoline, are removed and recovered by my invention, leaving thelubricating oilin condition for further treatment, for example, theseparation of solid impurities. My device is capable of being used inimmediate conjunction with internal-combustion engines to overcomedilution of the lubricant.

In these drawings,

Figure 1 is a vertical sectional view taken centrally and longitudinallythrough the apparatus forming part of my invention.

Figure 2 is a vertical transverse section through the casing forming theseparating chamber, taken on line 22 of Figure 1.

Figure 3 is a bottom plan View of one of the hot plates.

Figure 4 is a sectional view taken therethrough on line ti of Figure 3,and

Figure 5 is a detail section taken on line 5-5 of Figure 1.

Referring now to these figures, the apparatus includes an upright casinghaving at its top an outlet 11 opening into the upper end of adownwardly inclined outlet pipe 12 whose lower end opens into awater-jacketed condenser 13. The jacket 14 of this condenser has waterinlet and outlet pipes 15 and 16.

Within the separating chamber 31 of casing 10, which latter has a heavyinsulating lagging 17 is a vertical series of staggered inwardlyoverlapping hot plates 18 and 18, each heated by steam or other suitablepipes 19 upon the lower surface thereof, as seen particularly in Figures3 and 4. One of these hot plates 18', it will benoted from Figure 1, iscurved with its inner free edge underlying the inner end of an inletpipe 20, thecurve being one of constantly diminishing radius from thelower edge outward, so that the free edge below the inlet pipe 20 isnearly flat and the edge attachedto the opposite wall of the casing isturned well upward. Open ing into the outer end of this inlet pipe 20 isthe reduced portion 21 of a feed pipe 22 carrying steam, preferablysuperheated, or other hot gas at a temperature sufiicient to vaporizethe diluents met with in the oil being treated. Opening into thisreduced portion 21 is the In utilizing this apparatus in accordance withmy improved method, the oil to be refined or reclaimed is fed throughthe oil sup ply pipe 26 to the jacket in which it is heated around theoutlet pipe 12. The heated oil passes to the spray tip 23 through thefeed pipe 24.- where it is caught by the steam or other hot gas blown inthrough the pipe 22. This steam or other hot gains velocity in itspassage through the reduced portion 21 and sucks the oil from the spraytip 23 in the form of tine spray which is carried along with the steamtl rough the inlet pipe 20 of the casing. During the passage of the fineparticles of oil with the steam or hot gas through the pipe 20, the oilis further heated and this high temperature together with the largesurface exposed to evaporation by breaking up the oilinto a fine spray,causes any gasoline or other volatile diluent to evapcrate almostinstantly.

The vapors are blown from inlet pipe 20 into the separating chamber ontothe upper curved hot plate 18 whose curvature increases in an upwarddirection. This plate, like the other plates 18 is maintained at atemperature preventing condensation of the vapors which then pass upthrough the outlet 11 and through outlet pipe 12 where they heat the oilsupply in the jacket 25, finally passing into the condenser 13. Here thevapors are condensed and the condensates run down into a container 27through a pipe 28. The gasoline, which floats, may be drawn from thecontainer 27 through a pipe 29 and the Water may be drawn off through apipe 30.

The increasing upward curvature of plate 1ST is such that the plate isnearly flat below the inlet pipe 20 but is of much shorter radius at theopposite side. Thus the entering stream of vapor is given a'constantlyincreasing upward deflection, subjecting the entrained oil particles tocentrifugal force which causes them to separate out of the vapor currentand collect on the plate.

The oil sprayed onto the hot plate 18 trickles down in a thin film fromplate to plate. The oil which drops from the lowermost hot platecollects in the bottom of the separating chamber and may be drawn oilthrough a pipe 32 and if itoil to he re claimed or further freed ofheavier matter it may then be transferred to a centrifuge.

If the lower end of pipe 28 is submerged in the liquid within container27 as shown in Figure 1, a partial vacuum may be set up bythe condensingsteam, whereby to draw the steam and vapors more rapidly through theoutlet pipe 12. This may be controlled by a. valve 33 in a branch 34 ofthe pipe 28 shown also in Figure 1.

Having now particularly described and as' certained the nature of theinvention, and in what manner the same is to be performed, what isclaimed is v 1. An oil purification apparatus of the distillation typecomprising the combination of a casing having an inlet nozzle, a hotvapor supply pipe in communication with said inlet nozzle, an oil supplypipe having a spray tip at itsdelivery end opening into said vaporsupply pipe, and an upwardly curved bafile plate having its lower endimmediately adjacent, approximately tangential to and below the axis ofsaid nozzle.

2. In an apparatus for theseparation of diluents from oil, incombination, a casing,

an inlet, a hot vapor supply pipe in communication with said inlet, anoil supply pipe having a spray tip at its delivery end opening into saidvapor ipe, a series of alternating oppositely inclined baflles withinsaid chamber, one of said bafiles being positioned opposite said inletand having its lower end adjacent said inlet, said oppositely positionedbaflie having an upward curvature of diminishing radius.

3. In an apparatus for the separation of diluents from oil by heat ofthe type wherein heat remaining after said separation is utilized topreheat the oil, the combination of a casing, a nozzle for thesimultaneous 1n ec-' tion therein of comminuted oil, vaporizeddiluentsand treating vapor, an imperforate plate therein of upwardcurvature of diminishing radius opposite said nozzle, a series ofalternate downwardly inclined imperforate plates below said curvedplate, heating means attached to each of said plates, an outlet for oilbelow said plates, and an outlet for said vaporized 'diluents above saidplates.

ARNOLD L. HENNY.

